Wednesday, October17, 2018 L-36.com


Marine Weather and Tides
Long Beach, WA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:36AMSunset 6:24PM Wednesday October 17, 2018 3:03 AM PDT (10:03 UTC) Moonrise 2:35PMMoonset 12:00AM Illumination 54% Phase: First Quarter Moon; Moon at 8 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PZZ210 Columbia River Bar- 230 Am Pdt Wed Oct 17 2018
In the main channel.. * general seas...around 4 feet early this morning, but building to 6 feet by late morning. * first ebb...around 1215 pm today. Seas to 6 feet. * second ebb...around 1230 am Thursday. Seas to 7 feet. * third ebb...around 115 pm Thursday. Seas to 6 feet.
PZZ200 230 Am Pdt Wed Oct 17 2018
Synopsis for the southern washington and northern oregon coast.. High pressure over the inland northwest and thermal low pressure near the oregon coast will continue today then weaken tonight. The wind will turn more northerly during the latter half of the week as surface high pressure begins to center itself over the northeast pacific.


7 Day Forecast for Marine Location Near Long Beach, WA
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location: 46.37, -124.05     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 170950
afdpqr
area forecast discussion
national weather service portland or
249 am pdt Wed oct 17 2018

Synopsis High pressure over the region will produce an extended
stretch of mild days, cool nights, and clear skies through the
weekend. The high pressure should break down next week for a return
to rain.

Short term Today through Friday... Offshore flow continues as
cool, dry air mass east of the cascades flows toward the pacific
ocean. Weather will be about the same as yesterday, dry and warm
after a cool start. Again temperatures will be highly influenced by
the wind or lack thereof. The air mass is slightly cooler than
yesterday so expect MAX temps just below Tuesday's highs. The coastal
areas will be see onshore flow developing in the afternoon so the
immediate coastline should be cooler than tue.

High temperatures will decrease slightly over the next few days as
the lower level offshore flow weakens and becomes slightly onshore.

Low temperatures should be about the same or slightly warmer as the
dew points increase. Forecasting coastal temperatures and cloud cover
will be a challenge due to the timing of a southerly wind reversal
which will bring stratus and cooler temperatures. Current thinking
is to delay the arrival of the wind reversal tonight into thu.

Despite the change in wind direction later this week, there remains
no rain in the short term forecast.

Long term Friday night through Tuesday... Latest gfs, GFS ensemble
mean and ecwmf are in good agreement into the extended forecast. The
models show a well established ridge of high pressure over the area.

This ridge will keep us dry and slightly warmer than normal for this
time of year. Temperatures will be in the mid 60s to lower 70s along
the coast, and low to upper 70s inland. A surface low within the
willamette valley looks to develop, which will allow for a weak
offshore surface wind pattern into early Saturday. Expect very calm
winds throughout the remainder of the weekend, as the upper ridge
slowly moves out of the area. Models continue to agree that the next
best chance for precipitation and cooler temperatures starts early
next week, perhaps Tuesday at this point, as a series of frontal
systems works their way from the gulf of alaska into our area. 42

Aviation 12z package expectations: p6sm skc across the area
early this morning. Not expecting any fog or stratus as dew
points remain low and dew point depressions are too large. The
kttd-kdls gradient was holding at -5 mb as of 0830z, which was
producing 30-35 kt gusts at the west end of the gorge. This will
continue into the afternoon. The 00z model guidance suggests the
gradient will begin to weaken around mid-afternoon.

Kpdx and approaches... P6sm skc through 18 12z. The kpdx-kttd
gradient has gone neutral as of 0830z, which has resulted in calm
or light NW wind at the terminal. Expect e-se wind direction to
return around 18z. Not confident that llws criteria will be met.

Kpdx model sounding valid 12z-15z shows 10-15 kt speed shear just
above the surface, but not the 20 kt needed to carry llws.

Weishaar

Marine High pressure aloft to persist for the next several
days. Light offshore flow weakens this afternoon and becomes
predominantly nw-n by this evening. Wind speeds to be 15 kt or
less through the weekend. Models in general agreement showing a
weakening frontal system moving through the waters around the
23rd for possible small craft advisory speeds. The gfs, ECMWF and
cmc models show a rather deep surface low in the gulf of alaska
around the 24th. Details vary, but this may bring gale force wind
to the waters.

Fairly shallow seas will gradually build toward a longer period 8
foot 15-18 second swell by Wed night. Seas gradually subside
thereafter, but build to near 10 feet near the end of the
extended period. Toward a week from now. Weishaar

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... None.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46243 - Clatsop Spit, OR - 162 11 mi33 min 55°F3 ft
46096 14 mi93 min E 14 G 16 52°F 55°F1020.8 hPa
ASTO3 - 9439040 - Astoria, OR 19 mi33 min S 5.1 G 8 57°F 58°F1020.6 hPa
TOKW1 - 9440910 - Toke Point, WA 24 mi33 min ENE 11 G 12 57°F 57°F1020.9 hPa
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth 28 mi73 min E 12 G 14 60°F 56°F4 ft1020 hPa (-0.8)49°F
46211 - Grays Harbor, WA (036) 35 mi33 min 55°F4 ft
46248 - Astoria Canyon, OR (179) 36 mi38 min 57°F5 ft
WPTW1 - 9441102 - Westport, WA 37 mi87 min E 12 G 15 55°F 55°F1021 hPa

Wind History for Astoria, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Astoria, Astoria Regional Airport, OR17 mi68 minESE 610.00 miFair54°F45°F72%1020.3 hPa

Wind History from AST (wind in knots)
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Last 24hrSE3CalmE7E6E3CalmCalmNE4NE7NE4N5NE8NE8E7E8E5SE4E6Calm--E7E7E8E6
1 day agoE5E7E11E9E9E6E8E9E8NE9NE9NE7NE7E8E10E8E3E63CalmE5E6E8E5
2 days agoNE12E10E11E11E11E13E14E16E13E15E14E18NE15E13E13NE10NE10E5NE8E4NE6NE8SE6E3

Tide / Current Tables for Tarlatt Slough, Willapa Bay, Washington
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Tarlatt Slough
Click for Map
Wed -- 12:10 AM PDT     Moonset
Wed -- 03:03 AM PDT     1.31 feet Low Tide
Wed -- 07:36 AM PDT     Sunrise
Wed -- 09:12 AM PDT     7.01 feet High Tide
Wed -- 03:21 PM PDT     4.00 feet Low Tide
Wed -- 03:34 PM PDT     Moonrise
Wed -- 06:25 PM PDT     Sunset
Wed -- 08:35 PM PDT     7.27 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.62.61.71.31.82.83.95.26.476.86.35.75.14.544.255.86.67.17.26.75.8

Tide / Current Tables for Fort Canby, Jetty A, Columbia River, Washington
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Fort Canby
Click for Map
Wed -- 12:11 AM PDT     Moonset
Wed -- 01:22 AM PDT     1.15 feet Low Tide
Wed -- 07:36 AM PDT     Sunrise
Wed -- 08:33 AM PDT     6.17 feet High Tide
Wed -- 01:35 PM PDT     4.26 feet Low Tide
Wed -- 03:34 PM PDT     Moonrise
Wed -- 06:25 PM PDT     Sunset
Wed -- 07:36 PM PDT     6.31 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.71.21.21.82.63.64.75.66.16.15.85.24.74.34.34.65.15.666.36.35.84.83.7

Weather Map and Satellite Images
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GOES Local Image of PacificNorthwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for Portland, OR (6,6,7,8)
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Ground Weather Radar Station Portland, OR
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.